# MCU Firmware Update w/ ZMU

You can use this process to install updated microcontroller (MCU) firmware on your model system. You will need the updated Microcontroller firmware, which is available on the specific system’s page. Make sure to download the Microcontroller firmware before proceeding.

### <mark style="color:blue;">Downloads</mark>

Download the ZMU utility for deploying the updated microcontroller firmware

[ZMU Utility v1.0.0](https://static.onlogic.com/resources/firmware/utilities/zmu-1.0.0.zip)

### <mark style="color:blue;">Windows Update</mark> <a href="#updating-firmware-on-windows" id="updating-firmware-on-windows"></a>

1. Download the ZMU utility with the link above and copy zmu-windows-x86\_64.exe from it to the desktop.
2. Copy the firmware to be installed to the desktop.
3. Open a command prompt (press Win+X then I, or open the Start Menu and type “cmd”), then run the following commands (replace “\<firmware.bin>” with the name of the firmware to be installed):
   1. `cd %HOME%\Desktop`
   2. `zmu-windows-x86_64.exe image upload <firmware.bin>`
4. Once the update is complete, fully shutdown the computer (not just a Restart). Turn the system back on, and the update is now complete.

### <mark style="color:blue;">Linux Update</mark>  <a href="#updating-firmware-on-linux-x86-64-arm-aarch64" id="updating-firmware-on-linux-x86-64-arm-aarch64"></a>

(x86-64, ARM, AArch64)

1. Download the ZMU utility with the link above.
2. Open a terminal and run the following commands (replace “\<firmware.bin>” with the name of the firmware to be installed):
   1. `` zmu=zmu-linux-`uname -m` ``
   2. `unzip ~/Downloads/zmu-1.0.0.zip $zmu`
   3. `chmod +x $zmu`
   4. `sudo ./$zmu image upload <firmware.bin>`
3. Once the update is complete, fully shutdown the computer (not just a Restart). Turn the system back on, and the update is now complete.


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